| /* |
| * Copyright (C) 2007 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import <wtf/Assertions.h> |
| #import <dlfcn.h> |
| |
| #define SOFT_LINK_LIBRARY(lib) \ |
| static void* lib##Library() \ |
| { \ |
| static void* dylib = dlopen("/usr/lib/" #lib ".dylib", RTLD_NOW); \ |
| ASSERT(dylib); \ |
| return dylib; \ |
| } |
| |
| #define SOFT_LINK_FRAMEWORK(framework) \ |
| static void* framework##Library() \ |
| { \ |
| static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \ |
| ASSERT(frameworkLibrary); \ |
| return frameworkLibrary; \ |
| } |
| |
| #define SOFT_LINK(framework, functionName, resultType, parameterDeclarations, parameterNames) \ |
| static resultType init##functionName parameterDeclarations; \ |
| static resultType (*softLink##functionName) parameterDeclarations = init##functionName; \ |
| \ |
| static resultType init##functionName parameterDeclarations \ |
| { \ |
| softLink##functionName = (resultType (*) parameterDeclarations) dlsym(framework##Library(), #functionName); \ |
| ASSERT(softLink##functionName); \ |
| return softLink##functionName parameterNames; \ |
| }\ |
| \ |
| inline resultType functionName parameterDeclarations \ |
| {\ |
| return softLink##functionName parameterNames; \ |
| } |
| |
| #define SOFT_LINK_CLASS(framework, className) \ |
| static Class init##className(); \ |
| static Class (*get##className##Class)() = init##className; \ |
| static Class class##className; \ |
| \ |
| static Class className##Function() \ |
| { \ |
| return class##className; \ |
| }\ |
| \ |
| static Class init##className() \ |
| { \ |
| framework##Library(); \ |
| class##className = objc_getClass(#className); \ |
| ASSERT(class##className); \ |
| get##className##Class = className##Function; \ |
| return class##className; \ |
| } |
| |
| #define SOFT_LINK_POINTER(framework, name, type) \ |
| static type init##name(); \ |
| static type (*get##name)() = init##name; \ |
| static type pointer##name; \ |
| \ |
| static type name##Function() \ |
| { \ |
| return pointer##name; \ |
| }\ |
| \ |
| static type init##name() \ |
| { \ |
| void** pointer = static_cast<void**>(dlsym(framework##Library(), #name)); \ |
| ASSERT(pointer); \ |
| pointer##name = static_cast<type>(*pointer); \ |
| get##name = name##Function; \ |
| return pointer##name; \ |
| } |